A type server provides the proxy and stub code needed by client and server programs on demand (dynamically), when the code is needed during execution. When an interface for a resource is defined, the proxy code and the stub code for the type of resource is generated and stored within the type server. The client and server programs each keep a local table of type identifiers/resource type translations for each resource referenced. The local table acts like a cache: when a type identifier is not found in the table, the type server is contacted, and the type identifier for that resource type is retrieved and stored in the cache. Another local table acting as a cache stores type ID and associated proxy and stub code for the resource type. When a program needs the proxy code for a resource type, it checks its cache and it the proxy code is not found the type server is contacted, the proxy (and stub) code is retrieved from the type server and is stored in the cache.